With modern fixtures such as SNS or NNN you can do it easily. Insert the bracket located on the boot into a groove. Automatic mount locks itself. Mechanical fastening close manually.
You can install the mount on their own skis. Get a rigid metal mount. Pick it up so that it matches the shoe mount. Carefully inspect it and make sure there are no cracks or any other defects. Also appreciate the quality of the bow fastening and spikes.
Determine the center of gravity of the ski. To do this, put it across the narrow longitudinal object (like a balance beam). Locate skiing position, in which it is without external support will still horizontal. The front side of the mounting brackets must coincide with the center line of gravity, allowing the body weight is uniformly distributed on the ski.
Screw the front bracket screw to the ski so that welts shoes fit snugly against the side edges of the bracket. Also check whether the same longitudinal axis of skis and boots. Insert the boot in the attachment and check the position of the heel (it must exactly match the cargo area). Screw in and tighten the remaining screws. For reliability fill cap screws glue and let it dry thoroughly. Drill holes in the soles of shoes for the thorns.
Insert the boot in the attachment and raise it with the ski. If the attachment is installed correctly, the nose of the skis should outweigh slightly. At the same time the heel should be pressed against the cargo area.